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US20100089187A1 - Probe connector - Google Patents

Probe connector Download PDF

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Publication number
US20100089187A1
US20100089187A1 US12/250,837 US25083708A US2010089187A1 US 20100089187 A1 US20100089187 A1 US 20100089187A1 US 25083708 A US25083708 A US 25083708A US 2010089187 A1 US2010089187 A1 US 2010089187A1
Authority
US
United States
Prior art keywords
magnet
plunger
barrel
elastic element
probe connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
US12/250,837
Other versions
US8011931B2 (en
Inventor
Te-hung Yin
Yung-Yi Chen
Jui-Pin Lin
Shu-Fang Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cheng Uei Precision Industry Co Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US12/250,837 priority Critical patent/US8011931B2/en
Assigned to CHENG UEI PRECISION INDUSTRY CO., LTD. reassignment CHENG UEI PRECISION INDUSTRY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, YUNG-YI, LI, SHU-FANG, LIN, JUI-PIN, YIN, TE-HUNG
Publication of US20100089187A1 publication Critical patent/US20100089187A1/en
Application granted granted Critical
Publication of US8011931B2 publication Critical patent/US8011931B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
    • G01R1/06716—Elastic
    • G01R1/06722—Spring-loaded

Definitions

  • the present invention relates to a connector, and particularly to a probe connector.
  • a conventional probe connector includes a barrel, a plunger, and an elastic element.
  • the elastic element is arranged in the barrel.
  • One end of the plunger is disposed inside the barrel and propped on the elastic element, and the other end of the plunger extends out of the barrel.
  • the plunger is pressed inwards to compress the elastic element, and then the elastic element makes the plunger lean and electrically connect the barrel.
  • the connection between the plunger and the barrel is unsteady when the plunger moves in the barrel.
  • a ramp is defined on the end of the plunger propped on the elastic element or the elastic element is arranged eccentrically in the barrel, which makes the connection between the plunger and the barrel steadily when the plunger moves in the barrel.
  • the connection between the plunger and the barrel may be cut off when the probe connector is suffered from shock or the like.
  • an object of the present invention is to provide a probe connector.
  • the probe connector includes a barrel, a plunger, an elastic element, at least one first magnet, and at least one second magnet.
  • the barrel defines an enclosure surrounding a chamber. An opening is formed at one end of the barrel.
  • the elastic element is arranged in the chamber of the barrel.
  • the plunger has a basic portion received in the chamber and against one end of the elastic element, and a contact portion extending out of the chamber through the opening.
  • the first magnet is disposed on the enclosure of the barrel.
  • the second magnet is disposed on the basic portion of the plunger. When the plunger is pressed inwards, the plunger is leant towards one side with the basic portion against the enclosure because of the second magnet approaching the first magnet to produce a magnetic force interaction therebetween.
  • the second magnet approaches the first magnet to produce the magnetic force interaction therebetween. So the plunger is leant and then contacts an inner surface of the barrel. Due to magnetic force interaction between the first magnet and the second magnet, the connection between the plunger and the barrel is steady even though the probe connector is suffered from shock or the like, which prevents the electrical connection between the plunger and barrel being cut off suddenly.
  • FIG. 1 is a cross-sectional view of a probe connector in accordance with a first embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the probe connector shown in FIG. 1 for showing a plunger moving inwards;
  • FIG. 3 is a cross-sectional view of a probe connector in accordance with a second embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of the probe connector shown in FIG. 3 for showing a plunger moving inwards.
  • a probe connector 1 in accordance with a first embodiment of the present invention comprises a barrel 10 , a plunger 20 , and an elastic element 30 .
  • the barrel 10 and the plunger 20 are made of metallic material.
  • the barrel 10 defines an enclosure 101 to surround a chamber 102 therein. One end of the barrel 10 is sealed and the opposite end has an opening 103 .
  • a ring-shaped first magnet 104 is disposed at a middle portion of an outer surface of the enclosure 101 of the barrel 10 . In this embodiment, a south magnetic pole of the first magnet 104 faces the enclosure 101 .
  • the plunger 20 includes a basic portion 21 and a contact portion 22 extending from one end of the basic portion 21 .
  • the basic portion 21 is received in the chamber 102 of the barrel 10 and the contact portion 22 extends out of the barrel 10 through the opening 103 .
  • the outer dimension of the basic portion 21 is less than the inner dimension of the barrel 10 for allowing the basic portion 21 movably received within the chamber 102 .
  • the dimension of the opening 103 is less than the dimension of the outer dimension of the basic portion 21 for preventing the basic portion 21 being removed from the chamber 102 .
  • a piece of second magnet 23 with a south magnetic pole 231 and a north magnetic pole 232 is fixed in a bottom side of the basic portion 21 .
  • the magnetic field caused by the first magnet 104 is substantially parallel to that of the second magnet 23 .
  • the elastic element 30 is received in the chamber 102 of the barrel 10 . Two opposite ends of the elastic element 30 respectively resist on the sealed end of the barrel 10 and the bottom side of the basic portion 21 of the plunger 20 .
  • the plunger 20 is pressed to move downwardly by an outer force.
  • the elastic element 30 is compressed and the second magnet 23 gradually approaches the first magnet 104 .
  • the two opposite magnetic poles 231 , 232 of the second magnet 23 fixed in the plunger 20 are respectively repulsed and attracted by the first magnet 104 simultaneously (region A and B shown in FIG. 2 ). So the plunger 20 is leant and then contacts an inner surface of the enclosure 101 of the barrel 10 . Due to the magnetic repulsion force and magnetic attraction force, the connection between the plunger 20 and the barrel 10 is steady even though the probe connector 1 is suffered from shock or the like, which prevents the electrical connection between the plunger 20 and barrel 10 being cut off suddenly.
  • the probe connector 1 ′ in accordance with a second embodiment of the present invention is shown.
  • the probe connector 1 ′ in this embodiment is similar to the probe connector 1 in the first embodiment.
  • the probe connector 1 ′ in this embodiment includes a barrel 10 ′ with an enclosure 101 ′ therearound, a plunger 20 ′ and an elastic element 30 ′.
  • a ring-shaped first magnet 104 ′ is disposed at a middle portion of an outer surface of the enclosure 101 ′ of the barrel 10 ′.
  • the plunger 20 ′ includes a basic portion 21 ′ and a contact portion 22 ′ extending from one end of the basic portion 21 ′.
  • a bottom side of the basic portion 21 ′ is a ramp 212 ′.
  • a recess 211 ′ is defined in a lateral side of the basic portion 21 ′ and passes through the bottom side.
  • a block of second magnet 23 ′ with a south magnetic pole 231 ′ and a north magnetic pole 232 ′ is fixed in the recess 211 ′.
  • the inclined direction of the plunger 20 ′ caused by the elastic element 30 and the ramp 212 ′ is corresponding with the inclined direction of the plunger 20 caused by the magnetism of the first magnet 104 ′ and the second magnet 23 ′.
  • the plunger 20 ′ is pressed to move downwardly by an outer force and then the elastic element 30 ′ is compressed.
  • the plunger 20 ′ is leant due to the ramp 212 ′ and the elasticity of the elastic element 30 ′ and contacts an inner surface of the barrel 10 ′.
  • two opposite magnetic poles 231 ′, 232 ′ of the second magnet 23 ′ fixed in the plunger 20 ′ are respectively repulsed and attracted by the first magnet 104 ′ simultaneously (region C and D shown in FIG. 4 ), which makes the plunger 20 ′ lean at the same direction.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

A probe connector includes a barrel, a plunger, an elastic element, at least one first magnet, and at least one second magnet. The barrel defines an enclosure surrounding a chamber. An opening is formed at one end of the barrel. The elastic element is arranged in the chamber of the barrel. The plunger has a basic portion received in the chamber and against one end of the elastic element, and a contact portion extending out of the chamber through the opening. The first magnet is disposed on the enclosure of the barrel. The second magnet is disposed on the basic portion of the plunger. When the plunger is pressed inward, the plunger is leant towards one side with the basic portion against the enclosure because of the second magnet approaching the first magnet to produce a magnetic force interaction therebetween.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a connector, and particularly to a probe connector.
  • 2. The Related Art
  • A conventional probe connector includes a barrel, a plunger, and an elastic element. The elastic element is arranged in the barrel. One end of the plunger is disposed inside the barrel and propped on the elastic element, and the other end of the plunger extends out of the barrel. In use, the plunger is pressed inwards to compress the elastic element, and then the elastic element makes the plunger lean and electrically connect the barrel. However, the connection between the plunger and the barrel is unsteady when the plunger moves in the barrel.
  • To solve the problem described above, a ramp is defined on the end of the plunger propped on the elastic element or the elastic element is arranged eccentrically in the barrel, which makes the connection between the plunger and the barrel steadily when the plunger moves in the barrel. However, the connection between the plunger and the barrel may be cut off when the probe connector is suffered from shock or the like.
    • SUMMARY OF THE INVENTION
  • Accordingly, an object of the present invention is to provide a probe connector. The probe connector includes a barrel, a plunger, an elastic element, at least one first magnet, and at least one second magnet. The barrel defines an enclosure surrounding a chamber. An opening is formed at one end of the barrel. The elastic element is arranged in the chamber of the barrel. The plunger has a basic portion received in the chamber and against one end of the elastic element, and a contact portion extending out of the chamber through the opening. The first magnet is disposed on the enclosure of the barrel. The second magnet is disposed on the basic portion of the plunger. When the plunger is pressed inwards, the plunger is leant towards one side with the basic portion against the enclosure because of the second magnet approaching the first magnet to produce a magnetic force interaction therebetween.
  • As described above, when the plunger is pressed to move downwards by an outer force, the second magnet approaches the first magnet to produce the magnetic force interaction therebetween. So the plunger is leant and then contacts an inner surface of the barrel. Due to magnetic force interaction between the first magnet and the second magnet, the connection between the plunger and the barrel is steady even though the probe connector is suffered from shock or the like, which prevents the electrical connection between the plunger and barrel being cut off suddenly.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The present invention will be apparent to those skilled in the art by reading the following description of preferred embodiments thereof, with reference to the attached drawings, in which:
  • FIG. 1 is a cross-sectional view of a probe connector in accordance with a first embodiment of the present invention;
  • FIG. 2 is a cross-sectional view of the probe connector shown in FIG. 1 for showing a plunger moving inwards;
  • FIG. 3 is a cross-sectional view of a probe connector in accordance with a second embodiment of the present invention; and
  • FIG. 4 is a cross-sectional view of the probe connector shown in FIG. 3 for showing a plunger moving inwards.
    •  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • With reference to FIG. 1, a probe connector 1 in accordance with a first embodiment of the present invention comprises a barrel 10, a plunger 20, and an elastic element 30. The barrel 10 and the plunger 20 are made of metallic material.
  • The barrel 10 defines an enclosure 101 to surround a chamber 102 therein. One end of the barrel 10 is sealed and the opposite end has an opening 103. A ring-shaped first magnet 104 is disposed at a middle portion of an outer surface of the enclosure 101 of the barrel 10. In this embodiment, a south magnetic pole of the first magnet 104 faces the enclosure 101.
  • The plunger 20 includes a basic portion 21 and a contact portion 22 extending from one end of the basic portion 21. The basic portion 21 is received in the chamber 102 of the barrel 10 and the contact portion 22 extends out of the barrel 10 through the opening 103. The outer dimension of the basic portion 21 is less than the inner dimension of the barrel 10 for allowing the basic portion 21 movably received within the chamber 102. The dimension of the opening 103 is less than the dimension of the outer dimension of the basic portion 21 for preventing the basic portion 21 being removed from the chamber 102. A piece of second magnet 23 with a south magnetic pole 231 and a north magnetic pole 232 is fixed in a bottom side of the basic portion 21. The magnetic field caused by the first magnet 104 is substantially parallel to that of the second magnet 23.
  • The elastic element 30 is received in the chamber 102 of the barrel 10. Two opposite ends of the elastic element 30 respectively resist on the sealed end of the barrel 10 and the bottom side of the basic portion 21 of the plunger 20.
  • Please refer to FIG. 2, in use, the plunger 20 is pressed to move downwardly by an outer force. The elastic element 30 is compressed and the second magnet 23 gradually approaches the first magnet 104. The two opposite magnetic poles 231, 232 of the second magnet 23 fixed in the plunger 20 are respectively repulsed and attracted by the first magnet 104 simultaneously (region A and B shown in FIG. 2). So the plunger 20 is leant and then contacts an inner surface of the enclosure 101 of the barrel 10. Due to the magnetic repulsion force and magnetic attraction force, the connection between the plunger 20 and the barrel 10 is steady even though the probe connector 1 is suffered from shock or the like, which prevents the electrical connection between the plunger 20 and barrel 10 being cut off suddenly.
  • Referring to FIG. 3, a probe connector 1′ in accordance with a second embodiment of the present invention is shown. The probe connector 1′ in this embodiment is similar to the probe connector 1 in the first embodiment. The probe connector 1′ in this embodiment includes a barrel 10′ with an enclosure 101′ therearound, a plunger 20′ and an elastic element 30′. A ring-shaped first magnet 104′ is disposed at a middle portion of an outer surface of the enclosure 101′ of the barrel 10′. The plunger 20′ includes a basic portion 21′ and a contact portion 22′ extending from one end of the basic portion 21′. A bottom side of the basic portion 21′ is a ramp 212′. A recess 211′ is defined in a lateral side of the basic portion 21′ and passes through the bottom side. A block of second magnet 23′ with a south magnetic pole 231′ and a north magnetic pole 232′ is fixed in the recess 211′. The inclined direction of the plunger 20′ caused by the elastic element 30 and the ramp 212′ is corresponding with the inclined direction of the plunger 20 caused by the magnetism of the first magnet 104′ and the second magnet 23′.
  • Please refer to FIG. 4, in use, the plunger 20′ is pressed to move downwardly by an outer force and then the elastic element 30′ is compressed. The plunger 20′ is leant due to the ramp 212′ and the elasticity of the elastic element 30′ and contacts an inner surface of the barrel 10′. Moreover, two opposite magnetic poles 231′, 232′ of the second magnet 23′ fixed in the plunger 20′ are respectively repulsed and attracted by the first magnet 104′ simultaneously (region C and D shown in FIG. 4), which makes the plunger 20′ lean at the same direction. Due to the magnetic repulsion force and magnetic attraction force, the connection between the plunger 20′ and the barrel 10′ is steady even though the probe connector 1′ is suffered from shock or the like, which prevents the electrically connection between the plunger 20′ and barrel 10′ being cut off suddenly.
  • The foregoing description of the present invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. Such modifications and variations that may be apparent to those skilled in the art are intended to be included within the scope of this invention as defined by the accompanying claims.

Claims (5)

1. A probe connector, comprising:
a barrel defining an enclosure surrounding a chamber, an opening formed at one end thereof;
an elastic element disposed in the chamber of the barrel;
a plunger having a basic portion received in the chamber and against one end of the elastic element, and a contact portion extending out of the chamber through the opening;
at least one first magnet disposed on the enclosure of the barrel; and
at least one second magnet disposed on the basic portion of the plunger;
wherein when the plunger is pressed inward, the plunger is leant towards one side with the basic portion against the enclosure because of the second magnet approaching the first magnet to produce a magnetic force interaction therebetween.
2. The probe connector claimed as in claim 1, wherein the magnetic field caused by the first magnet is substantially parallel to that of the second magnet.
3. The probe connector claimed as in claim 1, wherein the first magnet is of a ring-shaped and surrounds the enclosure of the barrel.
4. The probe connector claimed as in claim 1, wherein a bottom of the basic portion is a ramp against the elastic element, the inclined direction of the plunger caused by the elastic element and the ramp is corresponding with the inclined direction of the plunger caused by the magnetic force interaction of the first magnet and the second magnet.
5. The probe connector claimed as in claim 4, wherein a lateral side of the basic portion defines a recess, the second magnet is received in the recess.
US12/250,837 2008-10-14 2008-10-14 Probe connector Expired - Fee Related US8011931B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/250,837 US8011931B2 (en) 2008-10-14 2008-10-14 Probe connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/250,837 US8011931B2 (en) 2008-10-14 2008-10-14 Probe connector

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US20100089187A1 true US20100089187A1 (en) 2010-04-15
US8011931B2 US8011931B2 (en) 2011-09-06

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7789719B1 (en) * 2009-06-29 2010-09-07 Cheng Uei Precision Industry Co., Ltd. Probe connector
US20100301060A1 (en) * 2007-11-27 2010-12-02 Sartorius Stedim Biotech Connection of an accessory to a vessel
GB2486058A (en) * 2010-12-01 2012-06-06 Gen Electric Force compensated probe
CN103840318A (en) * 2012-11-26 2014-06-04 三星电子株式会社 Cable connector device
US20160011253A1 (en) * 2012-11-21 2016-01-14 Konrad Gmbh Method and device for testing a workpiece
CN106706974A (en) * 2016-12-23 2017-05-24 深圳市瑞能实业股份有限公司 Low-impedance contact conductive test electrode
US10096952B1 (en) * 2015-10-14 2018-10-09 CSC Holdings, LLC Cable having an integrated antenna
US20190033344A1 (en) * 2017-07-28 2019-01-31 Celadon Systems, Inc. Magnet extension
KR102056739B1 (en) * 2018-12-03 2019-12-17 초이미디어 주식회사 Magnetic pogo pin
KR20200091067A (en) * 2019-01-22 2020-07-30 주식회사 아이에스시 Probe pin for electrical test and test socket including same
US11437747B2 (en) * 2020-09-25 2022-09-06 Apple Inc. Spring-loaded contacts having capsule intermediate object
US11942722B2 (en) 2020-09-25 2024-03-26 Apple Inc. Magnetic circuit for magnetic connector

Families Citing this family (2)

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US8202133B1 (en) * 2011-04-18 2012-06-19 Cheng Uei Precision Industry Co., Ltd. Probe connector
US9570843B2 (en) * 2014-06-13 2017-02-14 Htc Corporation Conductive structure and electronic assembly

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US3123713A (en) * 1964-03-03 Radioactive source handling apparatus
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US6340320B1 (en) * 1998-12-18 2002-01-22 Honda Tsushin Kogyo Co., Ltd. Probe pin assembly, a method of making the same and a connector using the same
US20040077225A1 (en) * 2002-10-21 2004-04-22 L & K Precision Industry Co., Ltd. Electrical connector with movable pin
US6796850B2 (en) * 2003-02-13 2004-09-28 Smk Corporation Press fitting type spring connector
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US6870454B1 (en) * 2003-09-08 2005-03-22 Com Dev Ltd. Linear switch actuator
US6957986B2 (en) * 2002-12-24 2005-10-25 Molex Incorporated Compressible pin assembly
US7201613B2 (en) * 2003-03-18 2007-04-10 Shin-Etsu Polymer Co., Ltd. Pressure contact holding-type connector
US20090260456A1 (en) * 2005-09-16 2009-10-22 Filippo Degli Esposti Automatic solid Phase Microextraction (Spme) Sampling Apparatus
US7914348B1 (en) * 2010-06-15 2011-03-29 Cheng Uei Precision Industry Co., Ltd. Probe connector

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US3123713A (en) * 1964-03-03 Radioactive source handling apparatus
US2901691A (en) * 1955-04-12 1959-08-25 Friedrich M O Forster Method and apparatus for non-destructive testing
US3171549A (en) * 1961-07-21 1965-03-02 Molins Machine Co Ltd Mechanical handling apparatus
US3549842A (en) * 1966-11-21 1970-12-22 Westinghouse Electric Corp Fluid-blast circuit interrupter with piston assembly and electromagnetic driving means
US6340320B1 (en) * 1998-12-18 2002-01-22 Honda Tsushin Kogyo Co., Ltd. Probe pin assembly, a method of making the same and a connector using the same
US6822171B2 (en) * 2000-05-26 2004-11-23 Ishida Co., Ltd. Article handling system
US20040077225A1 (en) * 2002-10-21 2004-04-22 L & K Precision Industry Co., Ltd. Electrical connector with movable pin
US6957986B2 (en) * 2002-12-24 2005-10-25 Molex Incorporated Compressible pin assembly
US6796850B2 (en) * 2003-02-13 2004-09-28 Smk Corporation Press fitting type spring connector
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US7914348B1 (en) * 2010-06-15 2011-03-29 Cheng Uei Precision Industry Co., Ltd. Probe connector

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100301060A1 (en) * 2007-11-27 2010-12-02 Sartorius Stedim Biotech Connection of an accessory to a vessel
US8631716B2 (en) * 2007-11-27 2014-01-21 Sartorius Stedim Biotech Connection of an accessory to a vessel
US7789719B1 (en) * 2009-06-29 2010-09-07 Cheng Uei Precision Industry Co., Ltd. Probe connector
GB2486058A (en) * 2010-12-01 2012-06-06 Gen Electric Force compensated probe
US20120139528A1 (en) * 2010-12-01 2012-06-07 General Electric Company Force compensated probe
US8680844B2 (en) * 2010-12-01 2014-03-25 General Electric Company Force compensated probe
US20160011253A1 (en) * 2012-11-21 2016-01-14 Konrad Gmbh Method and device for testing a workpiece
US9739826B2 (en) * 2012-11-21 2017-08-22 Konrad Gmbh Method and device for testing a workpiece
CN103840318A (en) * 2012-11-26 2014-06-04 三星电子株式会社 Cable connector device
US9196979B2 (en) 2012-11-26 2015-11-24 Samsung Electronics Co., Ltd. Cable connector device
US9306323B2 (en) 2012-11-26 2016-04-05 Samsung Electronics Co., Ltd. Cable connector device
US10096952B1 (en) * 2015-10-14 2018-10-09 CSC Holdings, LLC Cable having an integrated antenna
CN106706974A (en) * 2016-12-23 2017-05-24 深圳市瑞能实业股份有限公司 Low-impedance contact conductive test electrode
US20190033344A1 (en) * 2017-07-28 2019-01-31 Celadon Systems, Inc. Magnet extension
CN109324276A (en) * 2017-07-28 2019-02-12 切拉东系统有限公司 Magnet extension
US10976347B2 (en) * 2017-07-28 2021-04-13 Celadon Systems, Inc. Magnet extension
TWI791032B (en) * 2017-07-28 2023-02-01 美商色拉頓系統公司 Magnet extension
KR102056739B1 (en) * 2018-12-03 2019-12-17 초이미디어 주식회사 Magnetic pogo pin
KR20200091067A (en) * 2019-01-22 2020-07-30 주식회사 아이에스시 Probe pin for electrical test and test socket including same
KR102698076B1 (en) 2019-01-22 2024-08-26 주식회사 아이에스시 Probe pin for electrical test and test socket including same
US11437747B2 (en) * 2020-09-25 2022-09-06 Apple Inc. Spring-loaded contacts having capsule intermediate object
US11942722B2 (en) 2020-09-25 2024-03-26 Apple Inc. Magnetic circuit for magnetic connector

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